P441Use of a smartphone camera to estimate systolic blood pressure compared to standard oscillometric blood pressure measurement - a prospective trial

Abstract

Methods: Subjects at our University Hospital received a standard oscillometric cuff device (OCD) on their upper arm and a smartphone with its camera facing their index finger of the same arm after they signed informed consent. Seven sequential measurements starting with the OCD followed by the smartphone were performed. PPG files were analysed blinded for the oscillometric results and correlated with the mean between the preceding and the succeeding oscillometric result. In addition, 200 predefined subjects had repetitive measurement blocks within 3 days.